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New treatment option for Circadian Rhythms
Official title The Effect of a Continuous 1-Hour Time Delay on Circadian Rhythms
ClinicalTrials.gov ID: NCT07317349
What this study is testing
- What it's testing
- The purpose of this study is to investigate whether the experience of a daily time delay can affect our internal circadian rhythm.
A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.
Who can take part
Ages 23 to 45. Healthy volunteers may be eligible.
You may be able to join if
- Healthy adults aged 23-45 years
- Part of a heterosexual, cohabiting couple willing to participate together in a five-day in-laboratory study
- Both partners meet all Completion of at least upper-secondary education
- Maintain a regular sleep-wake schedule
- Habitual sleep timing within a normative range (non-extreme chronotype), assessed using the Morningness-Eveningness Questionnaire (MEQ) or the Munich...
You likely can't join if
- Engages in night-shift work or maintains an irregular work or sleep schedule
- International travel involving a time-zone change of more than two hours within the past two months, or anticipated travel before study completion
- Diagnosed neurological, psychiatric, or sleep disorder (e.g., insomnia, sleep apnea, bipolar disorder)
- High risk of sleep apnea, defined as a Berlin Questionnaire score \>2 (Lauritzen et al., 2018)
- Use of medications known to affect sleep, alertness, melatonin secretion, or circadian timing
- Unable or unwilling to comply with behavioral restrictions, including refraining from electronic devices displaying time cues unless clocks are...
See the full eligibility criteria
- Healthy adults aged 23-45 years
- Part of a heterosexual, cohabiting couple willing to participate together in a five-day in-laboratory study
- Both partners meet all Completion of at least upper-secondary education
- Maintain a regular sleep-wake schedule
- Habitual sleep timing within a normative range (non-extreme chronotype), assessed using the Morningness-Eveningness Questionnaire (MEQ) or the Munich Chronotype Questionnaire (MCTQ)
- Both partners fall within the acceptable chronotype range to ensure aligned sleep-wake patterns
- Low seasonality scores on the Seasonal Pattern Assessment Questionnaire (SPAQ)
- Free from underlying sleep or mood disorders
- Engages in night-shift work or maintains an irregular work or sleep schedule
- International travel involving a time-zone change of more than two hours within the past two months, or anticipated travel before study completion
- Diagnosed neurological, psychiatric, or sleep disorder (e.g., insomnia, sleep apnea, bipolar disorder)
- High risk of sleep apnea, defined as a Berlin Questionnaire score \>2 (Lauritzen et al., 2018)
- Use of medications known to affect sleep, alertness, melatonin secretion, or circadian timing
- Unable or unwilling to comply with behavioral restrictions, including refraining from electronic devices displaying time cues unless clocks are removed and devices are disconnected from Wi-Fi
- Unable or unwilling to comply with consumption restrictions, including abstaining from caffeine, alcohol, and melatonin-rich foods during the study
- Extreme chronotype, defined as a habitual midsleep time outside 03:00-05:00 on the MCTQ or classification as an extreme morning or extreme evening type on the MEQ
- Daily caffeine consumption exceeding 400 mg (approximately 4-5 cups of coffee)
- Current smoker or smoking within the past six months
The study team makes the final eligibility decision.
Where it's taking place
- Aarhus, Denmark
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 23 years to 45 years. Healthy volunteers may be eligible. The study team makes the final eligibility decision.
Where is this trial taking place?
Study sites include Aarhus, Denmark. Enter your location above to see the nearest site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from ClinicalTrials.gov; the study team decides eligibility.